Box structural features

The main box is shaped by CNC machine, the modeling is pleasing and nice, and operated by no-reaction handle. It is easy to use.
The interior of the box uses the material of imported stainless steel plate of mirror surface (SUS304), the outside of the box uses plastic coating plate in order to increase the texture and the cleanliness of the appearance.

Large observation window with light make the box bright and the use of embedded heat-tempered glass make the customer have a clear observation at any time.

There is a DIA 50MM test hole at the left of the box, it can connect the test power line or signal line.

Controller

Temperature controller uses all imports touch button instrument, easy to be operated.
When the customer input the data and the test conditions, the controller will lock the functions to avoid human touch and temperature changes.
It has the function of automatic calculation; it can amend the temperature change conditions immediately to make the temperature control more precise and stability.
The customers can choose the printers according to their own demand.

Refrigeration and air path circulatory

The refrigerator uses the “TAI KANG” completely closed compressor made in France.
The refrigeration system uses one unit or dual low-temperature loop system design.
It uses multi-winged blower which can offer cycle and powerful wind, and this wind style can avoid any dead ends, can make the temperature in the region distribute homogeneously.

This Wind Road use wind out and in cycle design, the air pressure and the wind speed are in line with the testing standards, and when open the door, the temperature change to low fast and stable.
Heating system and cooling system can completely work independently. This can raise the efficiency and lower the cost of test, also increase the life expectancy and lower the failure rate.

Meet the standard

GB/T2423.1-2001 GB/T2423.2-2001

THE technical specifications

ITEM NO：GDW-100 GDW-225  GDW-500  GDW-800 GDW-010
Size of studio D*W*H:450*450*500   500*600*750   800*700*900   800*1000*1000 1000*1000*1000
Temperature range：A: -20℃--130℃   B: -40℃--130℃  C: -60℃--130℃  D:-70℃--130℃
Fluctuations/uniformity	≤±0.5℃/+2℃-3℃
Heating time:-20℃--100℃ about 35min -40℃--100℃ about 45min -70℃--100℃ about 55min
Cooling time: 25℃---40℃ about 50min 25℃---60℃ about 65min   25℃---70℃ about 80min
Controller: imported LED digital display P.I.D+S.S.R Microcomputer Integrated controller
Precision range: set precision: temperature±0.1℃  instructed precision: temperature±0.1℃ Analytic precision: ±0.1℃
Heating system: all independent systems, Ni-Cr alloy, heating heaters
Cooling system: all closed one way /multi ways wind-cooled Compression refrigeration
(brand: “TAI KANG” from France)
Cycling system: high temperature resistance, low noisy air conditioning motor
multi-leaf centrifugal wind round
Material of outside box: carbon steel plate of good quality, which is deal with electrostatic phosphate powder-coating, SUS304 stainless steel plate with veins in the surface
Material of inside box: SUS304 stainless plate with mirror surface of good quality
Material of heat preservation   polyurethane foaming     glass fiber cotton
Heat insulation doorframe: double high, low temperature-resistance, anti-aging rubber dealing bar
Standard configuration: Multi-touch heating cream，glass vision window for lighting(1set),
Sample rack 2pcs  1 test holes (25,50,100mm)
Safety protection: have memory in situation of Leakage, short-circuit,
over-temperature of the electric machinery
Also have memory when Over-current/voltage of compressor happens.
function of timing	0.1-999.9(S M H) changeable
Power supply voltage: AC380V±10% 50±0.5HZ three-phase five-wire system
Temperature of the environment	5℃--+30℃≤85% R.H
P.S    1 “GDW”is the pattern symbol of high/low temperature test chamber. 2,  All the data are taken in condition of 25℃(QT) and the working studio has no load 3, We can make nonstandard high low temperature test chamber according to the demand of the customer